Questions tagged [file-compression]

Software that compresses or shrinks the file size of other files (or interacts with other software doing so).

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Which algorithm can be used to compress image files ? Suggest any Python based algorithm

Currently I am working on a monitoring project.It captures the activity of user by taking screenshots and saving it in a folder. Later on I am applying image processing to identify the activity of ...
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9 views

Library for compressed files in java

I need a java library that can handle at least 7z, zip, wim, tar (rar would be nice). Thing that I need the most is checking if file is password protected but it would be great to be able to unpack ...
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Guacamole recording

I'm using Guacamole project to provide a vnc proxy. I followed the Documentation to record a vnc session. it produce a file for me named "recording" without any format. I know I can use guacenc to ...
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Free and GUI program to create separate compressed file archives (e.g., .zip or .7z) for each selected file/directory

I'm looking for a GUI, free program for Microsoft Windows 7 or 10 that can create separate compressed file archives (e.g., .zip or .7z) for each selected file/directory. For example, if I select 10 ...
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Command line Software to compress images

I need a command line software (preferrably) which can compress photos to a given maximum size so that I can easily upload it to websites.
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compression video file before store in server in django

I have a web app that user can upload video . now i need to compression uploaded video and store it but i don't know what is best package or best solution for. it's my first time that i want do ...
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9 views

Tool to convert large Mozilla LZ4 files to plain text?

TL;DR: I am seeking for software to turn Mozilla's headacheful LZ4 garbage into usable plain text. There is already a scrounger for Mozilla LZ4, which even is supposed to work offline when saving the ...
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Which distro supporting ZFS is currently most performant?

I am setting up a networked system for acquiring a large number of streamed camera images (up to 3GB/s of raw tif files; up to 2TB per experimental acquisition). The host that acquires the data will ...
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36 views

What is an alternative for tar (compressor)?

I have a 200MB file. I want to compress this into a small file. Now I'm using TAR. but it only compresses word-like files, not binary files. So, I'm searching an alternative tool for tar to compress ...
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10 views

Integrate SPA in the device (compression of files)

I've read a useful information from realtimelogic.com: Resource usage becomes critical when working with small microcontrollers both in terms of memory usage and CPU. A minified and gzip ...
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Software to read a file with a .sfds extension?

I have a compressed file of images in a .sfds extension. But I do not know how to open and view the images. I believe sfds stands for single file data storage and the only information I have found is ...
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What Linux software to decompress file with TXT extension?

Client sent me a compressed file with TXT extension. At first i thought it is not an archive file. But when i used 7-zip (Windows) to look inside it, i can see files inside but Linux. I have tried so ...
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Windows Explorer that open popular zip files like normal files and folders

Noted that the Windows Explorer in Windows 8, 8.1, 10 are able to open zip files and treat them like normal files and folders. So, was wondering if there is a better than Windows Explorer that ...
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Android tools for unzipping corrupt zip files

I had searched for some tools that can unzip files from a large corrupt zip file on android. I couldn't, so now I learned how to use ZipInputStream in java. Now I want to share the fruit of my tiny ...
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1answer
101 views

General-purpose CLI compression program with good integrity check in Linux

As the title says I am in search for a good, defined as the best available, general-purpose command-line compression program with good integrity check in Linux. These archives will be used for long ...
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1answer
47 views

A single cmd app to support multiple compression format

As you know by default there is one program (command) for each compression format and unfortunately, some of them use a different command for data extraction. I would like to memorize a single app ...
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Any library in Java or Python for storing lots of small objects in AWS S3 “intelligently”?

I need to store a lot objects in S3, and I need to be able to address each object fairly quickly (maximum of 2 GETs to find one object) and I don't want to be wasteful when comes to the number of PUT ...
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on-the-fly compressed volumes for Windows

I am looking for a freeware Windows tool that provides on-the-fly compressed virtual drives stored in files (similar to TrueCrypt disks). The virtual drive should offer random access and should be ...
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Compressing many similar large images?

I'm dealing with a large archive of satellite images of the Earth, each one taken 15 minutes apart over the same area, therefore they are quite similar to each other. Two contiguous ones look like ...
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Zipster alternative for macOS High Sierra

Zipster integrates support for browsing compressed files on macOS Finder but it's been discontinued. The website says: Support for this product has ended. There are known problems with this ...
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116 views

Which compression utility should I use for an extremely large plain text file?

I have a lot of data. A lot. My data file is a little under 2TB (terabytes) of line-separated plain text records, each about 4 or 5 KB (totaling to a few hundred million records). I'm prioritizing ...
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83 views

How to convert to/from a CorelDraw .WI wavelet-compressed image file

I have a large sample of .WI images I need to convert to e.g. JPEGs, but the format now seems defunct. The mimetype is image/wavelet. The compression algorithm was developed by Summus, a US company ...
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1answer
52 views

Differential compression software

Suppose these: Everyone in the world (or at least my audiences) has downloaded the file ubuntu-16.04.3-desktop-amd64.iso with md5sum of 0d9fe8e1ea408a5895cbbe3431989295 which is approximately 1.5GB ...
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1answer
41 views

Open source smart extract

I would like a program that: If top layer of archive is just single item, then extract here If top layer of archive is several items, then extract to new folder I see these: http://softwarerecs....
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1answer
450 views

Transparent file compression apps for macOS

I'm looking for app for macOS Sierra and above which would allow me to compress files transparently in the background to increase free space which works for macOS Sierra and above. Basically I'm ...
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5answers
342 views

Software to compress PDF files

The other similar question is not related to my question and didn't provide answers at all. So I'm looking for a freeware or opensource software that can compress my 1GB+ PDF files into a reasonable ...
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2answers
38 views

Secure File Storage

I have some file I want to store that I do not want to be readable with out proper software or conversion. I used to ZIP file until Windows 7 Started to scan the zip file and "Remove Viruses". The ...
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81 views

C++ library to compress files with password protection

I would like to ask for any recommendation for good C++ library to compress files/folders (usually the libs are stream oriented without good file support). Currently we use minizip (based on zlib) ...
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different methods for rar archives [closed]

When I pack my data to .rar archive, I usually make backup original data. But last time I forgot about backup, and when I opened .rar file, I got - Invalid or corrupt authenticity information. Someone,...
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1answer
59 views

Reducing the file size of scanned letters

History This is a follow up to and old question from StackOverflow scale and reduce colors to reduce file size of scan Unfortunately convert of imagemagick is too slow (Sometimes our system receives ...
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1answer
44 views

What's the best Windows archive tool (WinRAR, WinZip, etc)? [closed]

I have some data that has been downloaded with the extension .zip or .gz. I always have had WinRAR software installed on my computer and I was always able to uncompress such files. But last night I ...
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1answer
431 views

Minification: Renaming/shortening CSS selectors?

I've been looking for tools that minify HTML, CSS and JS together. With that being said, I don't mean just whitespace and comment removal, but also shortening of selectors. For example <div ...
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1answer
61 views

Is there a unified wrapper for python's archive compresson packages?

Python supports a lot of archive formats. I personally know of tar (which supports gzip and bz2), zlib, rar, zip, lzma and 7z. I find it a bit tedious and error-prone to do auto-detection of these ...
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1answer
64 views

Need a Software to compress videos

I have many videos that I want to compress. I've tried 7z. But it could only marginally compress a 188 MB video to a 184 MB archive. Are there any better available alternatives?? I'm willing to ...
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1answer
53 views

Software to compress, and browse, a website with 1000s of pages

I have a local copy of a website with 98,000 pages (I just checked). The uncompressed size is somewhere around 8gb. I'd like to put it all in one file maybe, and compress it, then just use a standard ...
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25 views

Archive file format / viewer that works like ordinary folders

I want to be able to create archive files that should work as ordinary folders, for example: - use 0% compression so that browsing/adding files in the archive is instant - preview thumbnails of ...
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1answer
417 views

PDF compressor software to host on your own server

Goal A web-based open source software to compress PDF files, to submit files via a browser, but to install on my own Linux server and use its processing power. Requirements A web interface. A ...
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1answer
115 views

Ultimate tool to transfer bytes (copy files, compress, upload, etc)

It will be a long story :) For the last decade the engineering team (us) have maintained homebrew tool for deployment engineering team written in C# to transfer files across datacenters and recently, ...
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1answer
67 views

Software that can archive files in a directory into multiple zip files, each holding 10 files

I'm looking for archive software with these requirements: Ability to archive files into multiple .zip files, each holding a max of 10 files Compatible with Windows 10
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Reed-Solomon encoder/decoder

Do you know any free software performing real Reed-Solomon coding/decoding? Or maybe a library that can be utilized to encode and/or decode files with Reed-Solomon algorithm?
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1answer
252 views

Open source archiver with integrated Error Correction Code

Is there an open source archiver with integrated error correction code? (preferably windows 7, linux is ok, too) presently the most stable procedure for me seems to be archiving with 7z and then ...
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0answers
45 views

What tools are available for managed file transfer?

I'm looking for some good examples of Managed File Transfer tools. This is in an enterprise / corporate setting, where we wish to automate some recurring file transfer tasks. Our bunch of cobbled ...
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3answers
81 views

Program that zips a group of files into sized chunks, each openable individually

I am looking for a Windows program that can zip a large group of files up and save them to multiple zip files, each (say) no more than 100 MB. It is critical however that any single zipfile can be ...
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0answers
19 views

Parallelized compression libraries with API

I have written a C application which uses libbzip2 to compress and extract some statistical data. The extraction times are excessive for large-scale datasets. Therefore, I am looking for C or C++ ...
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50 views

Lossless compressing software that grants best compression ratio for everyday purpose and/or for specific tasks

Hello there everybody. My question should be rather simple for "insiders" (or I hope so at least), so here is the matter: as far as I know and understand, 7zip is currently the best lossless ...
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1answer
1k views

GUI software to compress and merge PDFs

Compress PDF and Merge PDF are fantastically easy to use. I would highly recommend them had it not been because I cannot guarantee who has access to the data. So is there free (as in freedom) ...
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5answers
4k views

Batch script or program to extract RARs and then delete the RAR

I sometimes download libraries of files of the format: /library/sublib1/item1/item1.r01 /library/sublib1/item1/item1.r02 /library/sublib1/item1/item1.rar /library/sublib1/item2/item2.r01 /library/...
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1answer
618 views

Command line PDF image compression optimizer

It doesn't necessarily have to be CMD but I'd prefer it. It has to be free though. I have tried lots of different ones but all of them seem to optimize some bit data within the PDFs and don't even ...
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1answer
50 views

Application that shows rar-archives as normal files

Does anyone know of a software that allows mapping whole folders/drives (not just one archive) and show rar/zip/..-archive content as plain files? To be used with for example Plex as they removed ...
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2answers
1k views

API for creating/uncompressing zip files, ANSI C compatible and used in Windows applications

This is a first question on this StackExchange site, please let me know if my question is off-topic, and if so, which of the sites would be more appropriate. I am looking for an API that can be used ...